Hall of Dreams' Great Mausoleum
- For the music theme that has a similar name, see List by Song: Ten Desires#Stage 5 theme.
Hall of Dreams' Great Mausoleum
Under the Myouren Temple Graveyard
The Hall of Dreams' Great Mausoleum (夢殿大祀廟 Yumedono Daishibyou) lies directly underneath the Myouren Temple, and is the setting of stage 4, 5 and 6 of Ten Desires. Within the Myouren Temple Cemetery next to the temple lies a cave, which leads to the Mausoleum. It holds many spirits such as Soga no Tojiko. Further inside lies the Divine Spirit Mausoleum (神霊廟 Shinreibyō), in which the tomb of Toyosatomimi no Miko is located, but it's presumed that the temple was later re-located to Senkai based on details from Hopeless Masquerade.
In the past, Miko's mausoleum was constantly sealed by Buddhists preventing her from resurrecting. As time passed legends like Toyosatomimi no Miko faded away transporting her mausoleum and everyone within it to Gensokyo.
The Buddhist monk Byakuren Hijiri's Myouren Temple originally was settled on top of where Toyosatomimi no Miko's mausoleum was located; as a saint of humans, the two would naturally be at odds. This choice ended up causing the seal to be broken. In Reimu's ending and Sanae's alternate ending of Ten Desires, because they were opposed to living in a place under a temple of youkai, Toyosatomimi and her followers relocated to a dōjō in another world called Senkai.
As of Hopeless Masquerade, Miko had constructed a Taoist temple within Senkai known as the Divine Spirit Mausoleum (神霊廟). It welcomes humans aspiring to become hermits, but most of them fail the necessary training. It shares its name with the area in Stage 6 of Ten Desires. Based on Futo's Ending in Hopeless Masquerade, while not specifically called a Senkai, Miko and Futo's realm are described as "a space created by hermit arts, it's unclear if it's actually in Gensokyo." is extremely similar to the other descriptions of Senkai.
Miko and her followers were also shown residing in Senkai in Wild and Horned Hermit Chapter 18.
The Hall of Dreams' Great Mausoleum is based on the Hall of Dreams (夢殿 Yume-dono) of Houryuu-ji. It stands in a half area of the temple, Touin (東院 lit. "Eastern Yard"), and the other area is Sai'in (西院 lit. "Western Yard"). In the Hall of Dreams, there is Guze Kannon, which is said to have the same height as Prince Shoutoku, who Toyosatomimi no Miko is based on.
The Hall of Dreams stands on the ruins of Shoutoku's Palace. More precise explanation: Touin didn't exist yet when Sai'in was built. The original Houryuuji was made up by Prince Shoutoku and his aunt Empress Suiko for the completion of the Buddism project of his uncle or the ex-Emperor Sushun, who had been killed by the most famous man of Soga clan, Soga no Umako. Shoutoku was appointed regent of Suiko, governing well along with Umako. After Shoutoku died, the confrontation got worse between the Soga clan and the anti-Soga faction. Umako's grandson Soga no Iruka killed Shoutoku's son, Prince Yamahiro After a while, Iruka was assassinated, then the clan got far weaker, and disappeared after a little time. But Shoutoku's lineage had got a downfall. Then Touin was built later on the ruins of Ikaruga no Miya (斑鳩宮 lit. "Palace of Ikaruga"), the former home of Shoutoku and his son, for the memorial monument of Shoutoku's good ethical personality and political skill. The central facility is the Hall of Dreams.
The entrance of the mausoleum is based on the gates of the Hsiahai Cheng-Huang Temple (霞海城隍廟) in Taipei, Taiwan.  The image itself, however, is part of the stock photos that ImageFolio provides in its Oriental set. 
- Ten Desires
The mausoleum first appeared on stages 5 and 6 of Ten Desires. Due to Toyosatomimi's ability to listen to ten desires at once, many divine spirits which were the manifestations of human desire became attracted to the mausoleum, causing Reimu Hakurei, Marisa Kirisame, Sanae Kochiya, and Youmu Konpaku to investigate. Due to various misunderstandings and a general worry of someone weird or dangerous being resurrected, combat broke out, but afterwards there were no hard feelings and Toyosatomimi and her followers found that they enjoyed the thrilling combat. The now-revived "residents" of the Mausoleum appear to have been pacified for the moment.
A hole leading to the Mausoleum in Ten Desires
The entrance to the Mausoleum in Ten Desires
The Mausoleum exterior in Ten Desires
The Mausoleum interior in Ten Desires
The Mausoleum in Urban Legend in Limbo
The Mausoleum at night in Urban Legend in Limbo